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[AMPS] Peak reading vs True peak

To: <amps@contesting.com>
Subject: [AMPS] Peak reading vs True peak
From: k7sc@cybertrails.com (Jim Riff)
Date: Wed, 23 Jun 1999 07:21:01 -0700
In tuning high power amps, a CW signal will drive the watt meter to a
given level while reading the PO on the average watts scale of the meter
(Autek WM-1).
Then switch the watt meter to "peak", and modulating with a SSB note,
the peak level is not much higher. The amp has 3, 3CX800A's, and should
carry max PO. Is it?

Also, I have noticed some watt meters advertising TRUE peak power
readings, like the new Amertron AWM-30. Is there a difference between
peak power and True peak power? Am I reading the real SSB power, and is
there a needle delay on the upswing of the plate meter and the peak
power meters?

Thanks,
Jim, K7SC


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